Bandit barrier system



Aug. 6, 1935.

O. B. MCCLINTOCK BANDIT BARRIER SYSTEM Filed MaICh l5, 1931 5 Sheets-Shea?l l Aug 6, 1935. o. B. MccLlNTocK 2,010,603

BANDIT BARRIER SYSTEM K Filed March l5, 1931 3 Sheets-Sheet 2 f3/92/ a 75/1 /V f AU@ GQ 1935. o. B. MccLlNTocK 2,010,603

BANDIT BARRIER SYSTEM Filed March 13, 1951 3 Sheets-Sheet 15 Patented Aug. 6, 1935 UNITED STATES PATENT OFFICE BANDIT BARRIER SYSTEM oliver 13. McClintock, Minneapolis, Minn., as- ;signorto 0. B, McClintock Company, Minneapolis, Minn., a corporation of Minnesota Application March 13, 1931, Serial No. 522,260

' y4 claims. (C1. 177-314) 'I 5 designated as a bandit barrier system and is especially designed to prevent the robber from climbing over the counter structure and getting into the vault-containing compartment of the bank. This improved device comprises barrier cables or wires which, if broken, pressed vor displaced, will cause'the sounding or other operation of an alarm or alarms and other barrier cables or wires Which, if broken, pressed or displaced, become connected to high tension current, and also cause the sounding or other operation of an alarm device, all as will hereinafter more fully appear in connection with the drawings and` description Yof a preferred arrangement of said devices.

The invention is illustrated in the accompanying drawings wherein like characters indicate like `parts throughout the several Views.

Referring to the drawings:

Fig. 1 is a perspective View showing a portion of the counter and its super-structurev with the novel devices herein disclosed and claimed applied at the top of the super-structure;

Fig.'2 is a transverse section taken in a.v vertical plane indicated by the `lines marked 2-2 on Fig. 1;

Fig. 3 is a fragmentary side elevation of one of the barrier brackets;

Fig. 4 is a fragmentary plan view showing a wire-anchoring device at one end of one of the wires or cables;

Fig. 5 is a planview showing one .of the cable- `anchoring devices at the other end of the cable;

Fig. 6 is a section takenron the line 6-6 of Fig. 5; and

Fig. 7 is a diagrammatic view illustrating the Wiring system of the complete device.

'The structure illustrated in Fig. 1 includes a counter 8 of the usual or any suitable structure such as found in banks provided `with a counter top k9 on which is mounted a super-structure indicated as an entirety by the numeralr I Il. This counter super-structure so far as the 'present invention is concerned, may take various different forms, but preferably and as shown includes a glazed bullet-resisting wicket I()a vwith voice panels II)b and rotary dial tray IUC.

The barrier structure is supported on the top of the framework of the counter super-structure VI and it includes barrier Abrackets IVI arranged to support the high tension cables or wires I2 and alarm circuit cablesor wires I3. These wires may vary in number, but as shown, are two high tension Wires I2 and seven alarm circuit wires I3. These Wires are extended in parallel arrangement properly spaced from each other by the brackets II. In Figs. 4, and 6, there is 5 illustrated anchoring devices shown as used to anchor the ends of the high tension wires I 2, but the same devices are used to anchor the ends of the alarm circuit Wires I3. These barrier Wires I2 and I3 will be extended over the entirely eX- 10 posed upper portion of the super-structure portion I and in some instances they will be extended around the corner thereof through a corner bracket and which corner bracket II will be like the other brackets II lexcept that it will be provided with cable passages i Ia n'which are located roller-equipped cable or wire guides IIb best shown in Fig. 3.

In'the high tension wires I2, near the ends thereof are interposed insulating couplings I2a. 20

yTo one yof the end barrier brackets I I, as shown,

Vas directly anchored to said left-hand end bracket IIby means of screws I8. The extreme ends of .the said wires I2 and I3 are shown as attached and securely anchored to pins or short shafts I9, the square .ends of which are seated in the pronged heads 20 of the tu'bes I4. As shown, and for an important purpose, the heads 20 are provided With projecting switch contacts 2|. The said parts I4, I'I, I9`, ZD'and 2| are, of course, of metal and hence lare conductors of electricity. 4 Mounted on the brackets I'I but insulated therevfrom are metallic switch contacts 22 having raised contact poi-nts 22"L and 22b between which the movable contact 2I is normally positioned for coopera-tion in a manner that will appear in the vdescription of the operation. Quite strong coiled springs 23 are placed around the tubes I4 and are compressed Y.between the co-operating sleeves I5 andthe heads 20.

Where the cables I2 and I3 are passed around 50 a corner-.and hence through a corner bracket I I, they will .be passed over the guide rolls vI Ib, but at their extended ends they are secured to short windlass shafts or small drums 24 rotatably mounted in metallic anchor brackets 25, shown as rigidly secured to the adjacent barrier bracket II by screws 25a. Windlas's shafts 24 carry ratchet wheels 2lia that are normally engaged by spring pressed lock dogs 26 pivoted on the sides of the brackets 25.` The brackets 25 are of box-like form and their outer end walls are provided with wire or cable passages 25b through` which the wires I2 or I3, as the Case may be, are passed. In setting the barrier wires for action, the windlass shafts 24 will be turned and secured in such positions as to hold the wires I2 and I3 under tension that will position the movable switch contacts 2I between the` Contactpoints. 22a and 22D of the co-operating"switch contacts 22 Y The numeral 21 indicate'ssharp-pointed pro`l tecting barbs shown as projected from anlandicated by thev numeral 29; an alarm or signal kdevice in the form of electrically actuatedgong isiindicated by thenumeral 30; andan inducby the numeral 3l.

tion coil of the vibrator type such as are similar to thefModel T Ford ignition coil, as indicated The'primary of this coil Vor transformer 3l is indicated by Sie, the secondary by 3|b, the corerby'SIc, and the vvibratoror circuit interrupter by 3I1.Y

This transformer is of any suitable well-known construction and has primary leads 32-,343, the

'latter having 'interposed therein the vibrator 3 Id,

and'high tension secondary leadsf34 and 34a. The highj potential end of the secondary isv con- Vnected by lead 34""and a' lead '35 to the main vcentral or intermediate portions of highA tension wires I2, as shownin diagram View Fig?, and Ythe low potential end of the secondary is connected directly to the primary lead 32. One side of battery 29 is grounded through'one'of the metallic brackets Il through a lead wire 36.V

Gong 3@ is connected lbya lead wire 38 to the other side of battery 29 and by a lead vwire 39v to the several switch, contacts 22, which latter, it will be remembered, have the spaced contact points 22a and 22h. The` primary 'lead 32 of the high .tension 'transformer 3 I 'is .connected by .wire Il!) to the lead 33 and theother'primary lead 33 is connected by wire Il to lead wire 38. It will be seen that the vlow potential endV of the secondary 3|a is connected by leads 32, `i0 and 39 to the several switch contacts22.

In'the design of the barrier brackets Il illus- 'strated they are provided with central'portions 42 made in imitation of a microphone receiver and which, for that matter, might some'instances actually be any, active microphone remary of the high tensionrcoil r,V transformer is Y .normally open as is also the circuit. to the alarm gong 3U. If, however, one ormore ofthe alarm wires I3 be broken, the co-operating spring23 which is grounded through bracket Il` andelectrically connected to'moyable switch contact 2l,

will more switch contact 2l into engagement with contact point 22h, thereby closing the'circuit to gong 35 throughy battery 29 and wires.; 39. and 38, causing sounding of lthealarm. .V

This will also close the circuit to primary of the high tension coil or transformer 3l through the said wires 36, 39, 40, 4I and 38, causing the main intermediate portions of high tension wires I2 to be charged with high tension current, such as would'give serious shock to any person coming in contact therewith. If one of the said alarm circuitV wires I3, instead of being broken,

be pressed against, it would'compress'spring 23V causing vmovable contact 2| to engage contact point 22a, thereby closing the circuits in the same manner as just described, resulting in the sounding of the alarm and energizing of the high tension wires I2 with high tension current.

' If one of lthe high tension wires I2 be pressed 'against to any considerable extent, the co-oper- Y ating movablecontact 2! will be moved intoV engagement with `contact point 22e with the result justV above noted, to wit: that the alarm gong Vwilllbe sounded and the wires I2 will be energized with `high tension current. If, however, one of said Wires I2 be broken, .its spring 23V will cause engagement of the C10-operating contact 2l with Vcontact point 22h, thereby' causing the alarm gongS to be sounded and thel'ead wire 35 and connected portion of broken'wire vI2 and also the other unbroken high tension wire "I2to be .charged with high tension current.

From the above, it is thoughtto be Vobvious that it will be impossible forI any person to climb over'the'top of the counter super-structure in',- Vcluding Vthel barrier, without coming into contact with more orless and, in fact, all of the wires- I2 andl3, which will not only cause sounding of the alarm, but will give the intruder very severe` electrical shocks.V Of course, the barbs 2l afford further obstruction to the person climbingv over the barrier, but these are minor features."

VThe above described device therefore aiords' `a barrier of i highest possible efciency and the maintenance' of which is practically nil y'since normally there is no current flow through Athe circuits `of the protecting'system; A preferred and commercial form of the ldevice has been de.- scribed, but it will, of course, be understood that such'device is capable of large modicationas to construction and arrangement of lparts without departing from the spirit of the invention herein disclosed and broadly claimed. A

What is claimed is: Y

1.'The combination with. a barrier structure, of al source of high potential, spaced normally dead barrier conductors extending from the high Vpotential source and being exposed'across a portion, of the barrier, normally open switch means operative, when closed, to cause charging ofone vof said barrier'conductors from said source, and

.of the barrier, anormally open switch operatively connected to control chargingl ofone of vthe barrier wires `from said source and connected to be closed by serious disturbing movements of .one of the barrier wires, and means for electrically charging one of said barrier wires. l 3. The combination with a barrier structure,'of

,a'source of relatively low potential anda potential step-up transformer,Y said transformer having itsV primary connected in circuit with the low po.- ktentiaisource and a ,circuitiinterrupter in cincuit with the primary, a pair of spaced barrier Wires extending from the transformer secondary and exposed across the barrier, normally open switch means controlling the transformer primary circuit, and means operative by serious disturbing movements of either of said barrier Wires to close said switch means and cause charging one of the high potential barrier wires.

4. The combination with a grounded barrier structure, of a. normally inactive source of high potential, spaced co-operating barrier wires exposed across a portion of the barrier, one of said barrier Wires being grounded and the other thereof being connected to the high potential source, switch means operative to simultaneously render the high potential source active and to connect the grounded barrier wire to said source, and means operative under serious disturbing movements of at least one of said barrier wires to operate said switch means. 

